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Microchip Technology 24LC16BT-E/SN16KVAO
- Part No.:
- 24LC16BT-E/SN16KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC16BT-E/SN16KVAO.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,787
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Product details
Overview
24LC16BT-E/SN16KVAO from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 256 × 8-bit blocks, operating from 2.5V to 5.5V with 400 kHz max clock frequency, 5 ms max page write time, and industrial/extended temperature support (–40°C to +125°C). It serves as nonvolatile configuration storage in embedded controllers, sensor nodes, and power management systems.
For engineers reviewing the 24LC16BT-E/SN16KVAO datasheet, 24LC16BT-E/SN16KVAO pinout, 24LC16BT-E/SN16KVAO application, or 24LC16BT-E/SN16KVAO equivalent, key selection criteria include VCC range compatibility (2.5–5.5V), I²C timing compliance at 400 kHz, hardware write-protection via WP pin, 16-byte page buffer capability, and SOIC-8 packaging for through-hole or surface-mount integration.
Technical Context
The 24LC16BT-E/SN16KVAO implements a two-wire I²C slave interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal architecture includes an 8-block EEPROM array, 16-byte page latches, and address pointer logic supporting current-address, random, and sequential read modes.
Write operations are self-timed with automatic erase/write cycle control; page writes require a Stop condition to initiate internal programming. Acknowledge polling is supported to detect write completion without fixed delays, enabling efficient bus utilization in real-time systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), organized as eight 256-word blocks for modular addressing |
| VCC Range | 2.5V to 5.5V - ensures compatibility with 3.3V and 5V logic domains without level shifting |
| Max Clock Frequency | 400 kHz - supports standard-mode I²C timing with guaranteed setup/hold margins |
| Page Write Buffer | 16 bytes - enables burst writes within a single physical page (000–00F, 010–01F, etc.) |
| Write Cycle Time | 5 ms maximum - defines worst-case latency before next I²C transaction can begin |
| Endurance | 1 million erase/write cycles - supports long-term field calibration data logging |
| Data Retention | 200 years - guarantees nonvolatile storage integrity across product lifecycle |
Pinout & Package
24LC16BT-E/SN16KVAO uses an 8-lead SOIC (SN) package with 3.90 mm body width, JEDEC MS-012AC compliant footprint, and standard 1.27 mm pitch. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system GND plane |
| WP | Hardware write-protect input | Tied to VCC to disable all writes (read-only mode); tied to VSS for full read/write access |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; requires external pull-up resistor |
| SDA | Serial data bidirectional I/O | Open-drain line shared across I²C bus; requires external pull-up and supports multi-master arbitration |
| VCC | Power supply | Primary supply rail (2.5–5.5V); decoupling capacitor (0.1 μF) required near pin |
| A0, A1, A2 | Address select inputs | No internal connection - may be left floating or tied to VSS/VCC without functional impact |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Ensures robust noise immunity on SCL/SDA lines in electrically noisy environments (e.g., motor drives) |
| Output slope control | Prevents ground bounce during signal transitions, eliminating false Start/Stop detection |
| Hardware write-protection | Physically disables memory writes via WP pin-critical for firmware boot security and calibration lock |
| 16-byte page buffer | Reduces I²C transaction count by up to 16× vs. byte-write mode, improving system throughput |
| ESD protection | Exceeds 4 kV HBM - enables safe handling and board-level integration without additional protection |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at power-on reset. Use Value: Enables plug-and-play sensor replacement without manual recalibration; leverages 200-year data retention for maintenance-free operation. | Use Scenario: Retaining tariff schedules, billing counters, and communication parameters in electricity/water meters deployed in harsh outdoor environments. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store interfaced via isolated I²C to metrology MCU. Use Value: Hardware write-protection (WP = VCC) prevents unauthorized firmware or tariff updates; extended temperature rating (–40°C to +125°C) ensures reliability in uncontrolled enclosures. |
| Embedded Power Supply Sequencing | Automotive Body Control Module |
Use Scenario: Holding startup delay times, voltage thresholds, and fault recovery policies for multi-rail DC-DC converters in telecom infrastructure. IC Role / Device Role / Timing Role: System-level configuration EEPROM accessed early in boot sequence to configure PMIC registers. Use Value: 2.5V minimum VCC allows direct connection to 3.3V auxiliary rails; 1 μA standby current minimizes quiescent drain during sleep modes. | Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive interior modules. IC Role / Device Role / Timing Role: AEC-Q100 qualified nonvolatile memory for user preference storage accessible over vehicle CAN gateway I²C bridge. Use Value: Automotive qualification ensures operation under vibration, thermal cycling, and EMI stress; 1M endurance supports daily reprogramming over 10+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA16T-I/SN | Wider VCC range (1.7–5.5V); lower 100 kHz max clock below 2.5V; same 16Kbit density and SOIC-8 package | Supports battery-powered devices down to 1.7V; unsuitable for 2.5V-only systems requiring 400 kHz speed | Select when ultra-low-voltage operation is required and clock speed ≤100 kHz is acceptable |
| 24FC16T-I/SN | 1 MHz max clock; 1.7–5.5V VCC; identical pinout and memory organization | Enables high-speed configuration loading in FPGA/ASIC initialization sequences; higher active current (3 mA) | Select when system demands >400 kHz I²C bandwidth and 1.7V operation is needed |
Compared with 24LC16BT-E/SN16KVAO, the 24AA16T-I/SN offers broader voltage flexibility at reduced speed, while the 24FC16T-I/SN delivers higher throughput at the cost of increased power consumption-neither is pin-compatible drop-in replacements due to differing VCC and timing specifications.
Availability
24LC16BT-E/SN16KVAO is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and embedded power supply sequencing requiring stable component supply, long-term obsolescence planning, and AEC-Q100-compliant alternatives.
Supply support for 24LC16BT-E/SN16KVAO includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC16B family was designed specifically for reliable, low-power nonvolatile data storage in space-constrained embedded systems where I²C interface simplicity, hardware write protection, and extended temperature operation are critical.
FAQ
What is the maximum clock frequency supported by the 24LC16BT-E/SN16KVAO?
The 24LC16BT-E/SN16KVAO supports a maximum I²C clock frequency of 400 kHz across its specified VCC range of 2.5V to 5.5V. This is defined in the AC characteristics table of the official Microchip datasheet DS20001703M. Operation above 400 kHz is not guaranteed and may result in timing violations or communication failure. The 24LC16BT-E/SN16KVAO does not support the 1 MHz mode found in the 24FC16 variant.
Does the 24LC16BT-E/SN16KVAO require external pull-up resistors on SDA and SCL lines?
Yes, the 24LC16BT-E/SN16KVAO requires external pull-up resistors on both SDA and SCL lines because it uses open-drain outputs. Typical values are 2 kΩ for 400 kHz operation and 10 kΩ for 100 kHz. The exact value depends on bus capacitance and rise-time requirements. Pull-ups must connect to the same VCC rail powering the 24LC16BT-E/SN16KVAO to ensure proper logic levels and noise margin.
How does hardware write-protection work on the 24LC16BT-E/SN16KVAO?
Hardware write-protection on the 24LC16BT-E/SN16KVAO is controlled by the WP (Write-Protect) pin. When WP is tied to VCC, all write operations-including byte and page writes-are inhibited, while read operations remain fully functional. When WP is tied to VSS (or left floating, though not recommended), full read/write access is enabled. This feature provides physical, non-software-based protection against accidental or malicious memory corruption.
What is the page size and write buffer capacity of the 24LC16BT-E/SN16KVAO?
The 24LC16BT-E/SN16KVAO has a page size of 16 bytes and an on-chip page write buffer that holds up to 16 bytes. Page writes must be confined within a single physical page boundary (e.g., addresses 0x000–0x00F); crossing boundaries causes wraparound within the same page. This buffer enables faster bulk writes than individual byte writes, reducing I²C transaction overhead and improving system efficiency.
Is the 24LC16BT-E/SN16KVAO qualified for automotive applications?
Yes, the 24LC16BT-E/SN16KVAO is AEC-Q100 qualified for automotive applications. Its extended temperature range (–40°C to +125°C), 1 million endurance cycles, and 200-year data retention meet stringent automotive reliability requirements. The "E" suffix in the part number denotes Extended temperature grade, and the device is explicitly listed in Microchip's AEC-Q100 qualified devices documentation for use in body control modules, infotainment systems, and other automotive subsystems.
24LC16BT-E/SN16KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC16BT-E/SN16KVAO FAQ
1.How can I place an order for 24LC16BT-E/SN16KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC16BT-E/SN16KVAO on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 24LC16BT-E/SN16KVAO reliable?
The price and inventory of 24LC16BT-E/SN16KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC16BT-E/SN16KVAO is usually 5 days.
3.What payment methods are accepted for 24LC16BT-E/SN16KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC16BT-E/SN16KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC16BT-E/SN16KVAO?
24LC16BT-E/SN16KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC16BT-E/SN16KVAO order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 24LC16BT-E/SN16KVAO?
For technical support, including 24LC16BT-E/SN16KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC16BT-E/SN16KVAO requirements.
6.How does Aetrix verify that 24LC16BT-E/SN16KVAO is sourced from the original manufacturer or authorized distributors?
All 24LC16BT-E/SN16KVAO products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 24LC16BT-E/SN16KVAO meets industry standards.
7.What is the process for return or replacement of 24LC16BT-E/SN16KVAO?
All 24LC16BT-E/SN16KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24LC16BT-E/SN16KVAO, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 24LC16BT-E/SN16KVAO part is unused and in its original packaging.
Return procedure for 24LC16BT-E/SN16KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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